//
//  Book.h
//  oc_类的定义_圆
//
//  Created by blue on 16/4/7.
//  Copyright (c) 2016年 zzn. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface Book : NSObject
{
    NSString *_name;
    double _price;
}

-(id)init;
-(id)initWithName:(NSString *)name;
-(id)initWithPrice:(double)price;
-(id)initWithName:(NSString *)name andPrice:(double)price;

-(NSString *)name;
-(double)price;
@end
